Improvement in sawing-machines



ide-1d Griffier. l

linens-Tus REVNETZKY, or LLIYNe'oL'N,rumors.

Letters-Parental.105,848, mail ,my 26, 1870. i

Meh-

\ lITMIPRO'V1El1VlIEN".'l IN SAWING--MACEINE -The Schedule referred to in these Letters Patent and making part of the saule Y Be it known thatI, AUGUs'trUs -RENETZKQ of l Lincoln, in the vcounty of Logan-and State of Illinois,

have inventeda newand usef'ulr'rnproi-'em'ent in Sawl ingfMachines; and Ido hereby declarethe following to be a full and suicient description of the same,

reference being had toll the accompanying 4drawing' `which makes part of this speciication, and'which `represents a side elevation of the-same.

' lhe nature of my invention Vconsists in the arrange- `,ment of the several parts of my'improved sawingmachine, as hereinafter describe In the drawng I have yshown my invention applied `to scroll sawing, though itis equally applicable to cutting veneers`,`rip{vling and cutting lumber. from logs.

A represents the table, resting onv a suitable fra-me, from `which rises a standard, B, having an arm,- C.

` Ata suitable distance .above the table one radial` segment, D, is' pivoted on standard B, while `under the table, on a` brace, Eis pivoted the Aother radial segment D. y

'lo the outer ends of diese segments are suitably `secured the ends of a spring saw, F, which passes through aproperopening in the table.

On the arm C` a guide, Gr, slides vertically, and may be adjusted by set-screws g. This guide carries a forked head, fi, between the forks of which the saw moves, it being regulated laterally by screws J', one l passing through each fork.

The segmentD has a radial extension or arm, d',

by meansofwhich it is connected t-o the driving-Vv power, an arm, H, being pivoted to it and to a disk, I, on the driving-shaft, to which latter motion is imparted by any suitable means.

On the standard B, in any suitable position above the segment D, is secured a spring, J, which is connected to segment D by a rod, d;

As -the driving-shaft revolves, the segment D' is forced downward by means of arm H, the segment D following its movement, and' compressing the l spring J.

When the segment D' again assumes its normal position, the spring J',expanding, elevates the segment D, without which elevation ,the saw would bend' and break.'

Having thus described my invention, What I claim as new, and desire to vsecure by Letters Patent, is

The. arrangemeutof the segments D 1) d', independent oi' each other, and connected only by the saw F, spring J, and crank-arm H, all constructed, ar-v ranged, and operating as herein described and shown. Witnesses: AUGUSTUS RENETZKY.

ALBERT H. ALKIRE, CHARLES H. MILLER. 

